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3 sl lets Sheet 1. W. HULL.

Wagon-Brake.

No 70,217. Patented Oct. 29, 1867.

Witnesses:

% Inventor:

AM- 'HOTU-UTHO. Co. NY (USEDRNES PRUCESS) I 3 Sheets-Shet 2. W. HULL.Wagon-Brake.

No. 70,217. PatentedOct. 29, 1867.

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W. HULL.

Wagon-Brake.

Patented Oct. 29, 1867.

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IMPROVEMENT IN WAGON-BRAKE.

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TO ALL WHOM IT MAY- CONCERN:

Be it known that I, WESLEY HULL, of Fort Wayne, in the county of Allen,and State of :Indiana, have invented certain new and useful improvementsin Wagon-Brakes; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the etters of-refei'ence marked thereon.In the drawings Figure 1, sheet 1, is a side elevation.

Figure 2, sheet 2, is a plan view.

Figures 1, 2, and 3, sheet 3, are detached views ofthe same.

The nature of my invention consists in the construction of a brake,which will act to lock the wheel thereof while ascending a bill, as wellas descending the same.

To enable others skilled in the arts to make and use my invention, Iwill proceed to describe its construction and operation.

A represents a lock, which is constructed as seen in fig. 1, sheet 1,and in the diagrams on sheet 3. This lock is pivoted til the outer'cndof a cross-bar, B, and works freely on it; said block formed with curvedsides or faces, as seen in the drawings, which are presented to thesurface of the wheel when the brake is in operation. These surfaces areforced in contact respectively, as desired, by means of connecting-rods,in the man ner hereinafter described.- C represents a connecting-rod,which is attached by its rear end to the cross-bar B, and extendsforward to the front end of the hounds, or nearly so, and is theresecured to the lower end ofan angular lever, as seen at a. This lever ispivoted at its fulcrum b to the hounds of the wagon, as seen in thedrawings. Said lever extends from the fulcrum upwards to the uppersurface of the hounds, where it forms an angle, and extends thencehorizontally across said hounds and the rear end of the pole, as seen infig. 2, sheet 2', where it is turned downwards, and bent and pivoted toform a fulcrum, as on the opposite side. c represents bearings, whichsecure the said pole to the hounds. When tension is applied to the polethe bent lever is operated by being relieved, as seen in diagram 1,sheet 3, and the brakc'is relieved. When the pole is forced backwards,

as in holding back going down hill, the bent lever acts to force thebrake on to the wheel, as seen in red lines,

diagram 1, sheet 3. The bend int-he lever a serves to shorten the lowerarm thereof. When pressure is applied and the long arm forced backwardsthe short arm is virtually shortened, so as to increase the leveragejust in proportion to the amount of pressure applied and the distancethat the long arm is forced back. The result of this combination isconsidered at once effective, cheap, and durable. D represents a set ofconnecting-rods, which are secured at their rear ends to the block orbrake A, at or near its upper extremity, as seen in the drawings. Thefront end is secured to the rod on which the angular lever is secured,as seen at 01. These rods, at or near their centres, and just in'therear of the axle, are secured to the end of a lever, f, as seen at g, bymeans of slots formed in their ends of suitable length. This lever issecured by means of suitable bearings to the axle or bolster thereof, asseen in figs. 1 and 2.

Now, when tension is applied to the pole, as in drawing the wagon uponan inclined plane, and where, from any cause, it becomes necessary ordesirable to stop,-the handle of leverfis forced backwards, and thustension is-appliedto the brake-rod, and through it to the brake A, whichis thereby tilted up, as seen in diagram 2, sheet 3, wherein the surfaceIt is brought to bear on the surface of the wheel, and by itseccentricity causes the wheel to be efi'ectually locked, and the horsesmay stand at ease. The operation of the brake is at once effective,

simple, and easily controlled. After locking while ascending a hill,when the horses again resume the load, the

tension applied to the pole simultaneously unlocks the Wheel andrelieves the friction- 2il'ellmsenlis spring which acts upon lever f forthe purpose of holding the lever in a position so as not to beinterfered with'when the brakes are being acted upon in going down hill,and thus preventing it from swaying back and forth. Said spring 'actsalso to force the lever upward and forward when the lock is relieved inascending a hill, and thus takes'oif all of the weight and consequentfriction except that created by the block itself.

Another great advantage is derived from the use of this brake in theconvenience with which it may be used for the purpose of hitching thehorse by throwing the lines over it, and by the tension therefromderived: The said lever is always kept in a position to secure thebrakes to the surface of the wheels, and thus prevent thein fromstarting, for when they attempt to start, they relieve the. locks, andconsequently the lever is thrown back, and the horses are therebychecked in their forward movements as efieetually as they would havebeen were they held-by a man. The horses are also completely preventedfrom hacking by this device, for the reason that when the attempt ismade the rest-pin in the slot of the rear connecting-rod is forced hackto-the rear extremity of said slot, and thusthe top end of therubber-block is prevented from coming forward, and the wheel is aseffectually looked as while ascending or descending a. hill.

This lock may be used as a self-acting lock, or as a single descendinglock, or as'an ascending lock, or as a self-acting ascending anddescending lock, with or without the lever. I

What I claim as new, and desire to secure by Letters Patent, is-

The'brake A, bent lever a, connecting-rod C, in combinationwith slottedconnecting-rods and lever, for the purpose of locking wheels of wagonswhile ascending or descending hills, the whole being arranged andcomhine d in the manner and for the purposes herein set forth anddescribed.

WESLEY HULL. [L. s.]

Witnesses:

G120. ESMOND, G120. W. Duncan, Jr.

